Impact of reactor configuration on treatment performance and microbial diversity in treating high-strength dyeing wastewater: Anaerobic flat-sheet ceramic membrane bioreactor versus upflow anaerobic sludge blanket reactor. (December 2018)

• Record Type: Journal Article
• Authors: Zhang, Wenjie; Liu, Fangbiao; Wang, Dunqiu; Jin, Yue
• Is Part Of: Bioresource technology. Volume 269(2018)
• Page Start: 269
• Page End: 275
• Publication Date: 2018-12
• Subjects: Anaerobic membrane bioreactor -- Membrane fouling -- Decolorization -- Microbial diversity -- Seed sludge; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2018.08.126
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: AnCMBR had better COD, TN, and TP removal rates than those of the UASB reactor. The methane production of the AnCMBR was higher. The AnCMBR had a higher proportion of Desulfovibrio sp. and Desulfomicrobium sp. Sulfate-reducing enzymes were deduced to contribute to the sulfate-reducing pathway. Abstract: In this study, an anaerobic flat-sheet ceramic membrane bioreactor (AnCMBR) was used to treat high-strength dyeing wastewater, and compared with an upflow anaerobic sludge blanket (UASB) reactor. The start-up phases of the AnCMBR and UASB reactor were accomplished within 60 d by using cultivated seed sludge. The results showed that the AnCMBR had better COD, TN, and TP removal rates than the UASB reactor. The CH4 production of the AnCMBR was higher than that of the UASB reactor. The AnCMBR was operated with low energy consumption due to good water permeability of the flat-sheet ceramic membrane. The AnCMBR and UASB reactor had similar CH4 -producing Archaea; Methanosaeta, Methanosarcina, and Methanomassiliicoccus were the most abundant. The AnCMBR had a higher proportion of Desulfovibrio sp. and Desulfomicrobium sp., which are reported to have the potential to degrade reactive dyes. A large number of sulfate-reducing enzymes were deduced to contribute to the sulfate-reducing pathway.